Harnessing selenocysteine reactivity for oxidative protein folding.
Harnessing selenocysteine reactivity for oxidative protein folding.
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DOI:
10.1039/c4sc02379j
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发表时间:
2015-01-01
期刊:
影响因子:
8.4
通讯作者:
Hilvert D
中科院分区:
文献类型:
--
作者:
Metanis N;Hilvert D
Turbo-charged folding with selenium: targeted replacement of cysteines in proteins with selenocysteines is a valuable strategy for increasing the rates of oxidative protein folding, altering folding mechanisms, and rescuing kinetically trapped intermediates. Although oxidative folding of disulfide-rich proteins is often sluggish, this process can be significantly enhanced by targeted replacement of cysteines with selenocysteines. In this study, we examined the effects of a selenosulfide and native versus nonnative diselenides on the folding rates and mechanism of bovine pancreatic trypsin inhibitor. Our results show that such sulfur-to-selenium substitutions alter the distribution of key folding intermediates and enhance their rates of interconversion in a context-dependent manner.
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